220202022001021 has 16 divisors (see below), whose sum is σ = 235145704550400. Its totient is φ = 205748506252800.

The previous prime is 220202022001001. The next prime is 220202022001051. The reversal of 220202022001021 is 120100220202022.

It is a de Polignac number, because none of the positive numbers 2^k-220202022001021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220202022000986 and 220202022001004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220202022001001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96131725 + ... + 98395693.

It is an arithmetic number, because the mean of its divisors is an integer number (14696606534400).

Almost surely, 2^{220202022001021} is an apocalyptic number.

It is an amenable number.

220202022001021 is a deficient number, since it is larger than the sum of its proper divisors (14943682549379).

220202022001021 is a wasteful number, since it uses less digits than its factorization.

220202022001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2372220.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 220202022001021 its reverse (120100220202022), we get a palindrome (340302242203043).

The spelling of 220202022001021 in words is "two hundred twenty trillion, two hundred two billion, twenty-two million, one thousand, twenty-one".